1024 add breadcrumbs to templates (template inheritance)
This is an alternative to !692 (closed), see the discussion there. This MR does not change the behavior of templates which are used by multiple views. For these, see !697 (merged)
This is an alternative to !692 (closed), see the discussion there. This MR does not change the behavior of templates which are used by multiple views. For these, see !697 (merged)